当前位置: X-MOL 学术J. Approx. Theory › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Universal series induced by approximate identities and some relevant applications.
Journal of Approximation Theory ( IF 0.9 ) Pub Date : 2011-06-12 , DOI: 10.1016/j.jat.2011.06.001
Vassili Nestoridis 1 , Sebastian Schmutzhard 2 , Vangelis Stefanopoulos 3
Affiliation  

We prove the existence of series anψn, whose coefficients (an) are in p>1p and whose terms (ψn) are translates by rational vectors in Rd of a family of approximations to the identity, having the property that the partial sums are dense in various spaces of functions such as Wiener’s algebra W(C0,1), Cb(Rd), C0(Rd), Lp(Rd), for every p[1,), and the space of measurable functions. Applying this theory to particular situations, we establish approximations by such series to solutions of the heat and Laplace equations as well as to probability density functions.



中文翻译:

由近似恒等式和一些相关应用引起的通用级数。

我们证明系列的存在 一种ñψñ,其系数 一种ñp>1个p 以及谁的条款 ψñ 由有理向量翻译 [Rd 恒等式的一个近似族,具有以下性质:部分和在诸如维纳代数的各种函数空间中是密集的 w ^C01个Cb[RdC0[Rd大号p[Rd,每个 p[1个,以及可测量功能的空间。将此理论应用于特定情况,我们通过此类级数建立热和拉普拉斯方程解以及概率密度函数的近似值。

更新日期:2011-06-12
down
wechat
bug